Ok first off, a large part of this wallpaper is from =Shadow-Brushes's Graffiti brushes found here [link] But i also put a fair bit of effort into the background and placing of the graffiti, so some small amount of credit please.

I just fell in love with my own work lol, and would have just submitted a screen shot of my desk top but my print screen button does not work. Anyways, now you can all get your hands on my new wide screen wall paper i really hope you all like it as much as i do. Those Graffiti Brushes are awesome, if you have Photoshop, download them!!!

[EDIT]I changed the size and have offered this picture as a print as i had some interest in it. Also i do believe that the brushes i used are no longer available

I am a terrible person.
Here I go commenting on nothing but photography. Ah well. I just don't do well with anything abstract, as a rule, but this doesn't count, so I'm trying, here.
You captured the idea of graffiti so well -- the randomness, the odd bits and the placing . . . and it's balanced in composition to make a good WP.
That's good. ^^